John it



(No Model.)

J. H. STONEMETZ. STBREOTYPE PLATE CASTING BOX.

No. 442,341. Patented Dec. 9. 1890.

.with.

JOllk II.

S'IONEME'ITZ PRIN'ERS MACHINERY COMPANY,

PATENT @IFFICE STONEMETZ, OF MILLBURY, MASSACHUSETTS, ASSIGNOR TO THE CESAME PLACE.

STEREOTYPE-PLATE-CASTING BOX.

SPECIFICATION forming part of Letters Patent No. 442,341, dated December9, 1890.

Application filed July 1,1890. Serial No. 357,434:- (No model.)

To (LZZ whom it may concern:

Be it known that I, Jenn II. S'roNEnn'rz, a citizen of the UnitedStates, residing at Millbury, in the countyof Worcester and State ofMassach nsetts, have invented certain new and useful Iniprovements inStereotype Plate- Casting Boxes; and I do hereby declare the followingto be a full, clear, and exact description of the invention, such aswill enable others skilled in the art to which it appertains to make anduse the same, reference being had to the accom panyin drawings, and tothe letters of reference marked thereon, forming part of thisspecification.

My invention consists in the improvements in stereotype-plate-castingboxes hereinafter set forth and explained, and illustrated in theaccompanying drawings, in which Figure l is a perspective view of myimproved stereotype-plate-casting box locked up ready for casting. hi 2is a perspective view of same thrown open for the removal of the plate.Fig. 3 is a sectional view of a portion of same, showing the slottedbearing of the axis of the shell against which the matrix rests. Fig. 4-is a detail side view of a clamping-hook and eccentric.

This invention consists in the novel construction. and combination ofthe parts hereinafter fully described and claimed.

In the" construction of my improved stereotype-plate-casting box shownin the drawings,

A is an upright frame, having a base B thereon adapted to be secured toa floor, and C the central or core section of the casting-box, which iscast integral with or firmly secured to the upper ends of the sides ofthe framework A. In the upper ends of the sides of the frame A areslotted holes a, through which a shaft D passes into cars or bearings don the lower end of the shell-section E of the casting-box, into whichears or bearings (Z the shaft I) is firmly keyed, so as to rotate there-To the shaft D between the sides of the frame A is also firmly keyed alever E, which is provided with. a weightf, adapted to counterbalancethe weight of the shell E when turned back from the core-section C, asillustrated in Fig, 2.

On each edge of the movable shell-section E are side bars II, hingedthereto so as to be turned back, as shown in Fig. 2, or be turnedforward so as to cover the outer edges of a matrix placed in said shelland retain it in place, and also operate to fill the space between theedges of the core C and shell E.

On the front of the upright core-section C is secured a stop 0 forregulating the distance apart of the sections A and E, and on saidcore-section C, near the u pper and lower ends thereof, are alsojournaled transverse shafts I and J, which extend beyond the sides ofthe core C and shell E when closed up a sufficient distance tosupporthooks 1), adapted to engage with stud-pins e on the sides of the shellE. The shafts I and J are also provided with eccentrics 17, securedthereto, to which the hooks b are pivoted, and which also act upon theedges of the core C and upon the side bars II, hinged to the shell E,when the hooks b are engaged with the pins c and the shafts I and Jrotated to firmly clamp the shell-section E to the core-section C of thecasting-box. The shaft I is provided with a lever K, secured thereto, bymeans whereof the shaft I can be rotated, and the shafts I and J arealso provided with short levers L, and between said levers a link orpush-bar extends, pivoted to each of said levers, so that the shafts Iand J will move by the operation of the lever K in unison with eachother. The upper end of the shell E is provided with laterally-projecting handles N, by means whereof the shell E is raised and lowered on itsaxis D, which axis D, passing through the slotted holes a in the sidesof the frame A, permits the shell E to move back from the core G whenthe clamping-hooks b are disengaged from the studs 6, and therebyprevents the corners of a newlycast plate from being marred by theoperation of turning the shell back from the core C to the positionshown in Fig. 2 for the purpose of removing such newly-cast platetherefrom. m is a removable semicircular stop adapted to be placed overthe edge of the lower end of a matrix placed in the shell E to keep itin place. Having thus fully described my improvedstereotype-plate-easting box, its operation is so obvious to thoseskilled in the art to which it appertains that further descriptionthereof is deemed unnecessary.

Therefore what I claim as new, and desire to secure by Letters Patent ofthe United States, is

1. The combination, with the upright stationary core-section providedwith a stand beneath it having horizontal slots at, said coresection andstand being rigidly connected together, of the movable outer section anda shaft secured to the said outer section and journaled in the saidslots, substantially as and for the purpose set forth.

2. The combination, with the core-section, of a shaft journaled inbearings secured to the core-section, the eccentrics i, and the handle Isecured on the said shaft, the hooks pivoted

